Flow analysis based on mean velocity and pressure derivatives
Abstract
In order to study a special case of internal flow with many free vortices, a procedure was devised to find the local curl components. Successive hotwire and Pitot tube measurements followed by a smoothing procedure were used to find the values of mean velocity vector components and static pressure as continuous nonanalytic functions of space coordinates. Computed partial derivatives define tensor components for flow analysis. Quantitative information about vorticity obtained by this procedure matched well with qualitative information supplied by flow visualization.
 Publication:

Dantec Information (ISSN 09005579
 Pub Date:
 January 1986
 Bibcode:
 1986dant.rept...10D
 Keywords:

 Flow Geometry;
 Flow Velocity;
 HotWire Flowmeters;
 Pitot Tubes;
 Pressure Distribution;
 Vortices;
 Bernoulli Theorem;
 Gauss Equation;
 Smoothing;
 Instrumentation and Photography